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Finding the Fourth Proportional to 439,467.20, 659,200.80 and 304,164.80

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Solution

The fourth proportional to 439,467.20, 659,200.80 and 304,164.80 is: 456,247.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,467.20 : 659,200.80 = 304,164.80 : x
  2. Step 2: Convert to fraction form
    439,467.20/659,200.80 = 304,164.80/x
  3. Step 3: Cross multiply
    439,467.20x = 659,200.80 × 304,164.80
  4. Step 4: Simplify right side
    439,467.20x = 200,505,679,491.84
  5. Step 5: Solve for x
    x = 200,505,679,491.84/439,467.20
  6. Step 6: Final answer
    x = 456,247.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.